{"id":12378121,"date":"2026-03-19T17:42:01","date_gmt":"2026-03-19T09:42:01","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/wordpress%e6%8f%92%e4%bb%b6%e5%bc%80%e5%8f%91%e5%85%a8%e6%b5%81%e7%a8%8b%e8%af%a6%e8%a7%a3%ef%bc%9a%e4%bb%8e%e5%85%a5%e9%97%a8%e5%88%b0%e7%b2%be%e9%80%9a%e5%ae%9e%e7%94%a8%e6%8c%87%e5%8d%97\/"},"modified":"2026-06-03T20:54:38","modified_gmt":"2026-06-03T12:54:38","slug":"wordpress-plugin-development-complete-guide-from-beginner-to-expert-12378121","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/wordpress\/wordpress-plugin-development-complete-guide-from-beginner-to-expert-12378121\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn chi ti\u1ebft to\u00e0n b\u1ed9 quy tr\u00ecnh ph\u00e1t tri\u1ec3n plugin WordPress: T\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn th\u00e0nh th\u1ea1o"},"content":{"rendered":"

Set up and configure the development environment<\/h2>\n\n\n\n

Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u vi\u1ebft b\u1ea5t k\u1ef3 \u0111o\u1ea1n m\u00e3 n\u00e0o, m\u1ed9t m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n \u0111\u1ecba ph\u01b0\u01a1ng \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3 l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 th\u00e0nh c\u00f4ng trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m.WordPress<\/code>N\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n c\u1ee7a c\u00e1c plugin. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m ch\u1ee7 y\u1ebfu vi\u1ec7c x\u00e2y d\u1ef1ng m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7 c\u1ee5c b\u1ed9.WordPress<\/code>C\u00e1c b\u01b0\u1edbc c\u00e0i \u0111\u1eb7t c\u1ed1t l\u00f5i v\u00e0 vi\u1ec7c l\u1ef1a ch\u1ecdn tr\u00ecnh so\u1ea1n th\u1ea3o m\u00e3 ngu\u1ed3n.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7 c\u1ee5c b\u1ed9?<\/h3>\n\n\n\n

\u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7 c\u1ee5c b\u1ed9, khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00e1t tri\u1ec3n t\u00edch h\u1ee3p, ch\u1eb3ng h\u1ea1n nh\u01b0\u2026Local by Flywheel<\/code>\u3001XAMPP<\/code>\u6216MAMP<\/code>Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh ch\u1ec9 v\u1edbi m\u1ed9t c\u00fa nh\u1ea5p chu\u1ed9t.Apache\/Nginx<\/code>\u3001PHP<\/code>\u548cMySQL<\/code>Gi\u00fap b\u1ea1n tr\u00e1nh \u0111\u01b0\u1ee3c nh\u1eefng thao t\u00e1c c\u1ea5u h\u00ecnh th\u1ee7 c\u00f4ng ph\u1ee9c t\u1ea1p v\u00e0 m\u1ea5t th\u1eddi gian.Local by Flywheel<\/code>V\u00ec nh\u1eefng l\u00fd do li\u00ean quan \u0111\u1ebfn n\u00f3\u2026WordPress<\/code>V\u1edbi m\u1ee9c \u0111\u1ed9 t\u1ed1i \u01b0u h\u00f3a cao v\u00e0 t\u00ednh d\u1ec5 s\u1eed d\u1ee5ng, n\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u c\u1ee7a nhi\u1ec1u nh\u00e0 ph\u00e1t tri\u1ec3n. Sau khi qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t ho\u00e0n t\u1ea5t, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o m\u1ed9t \u1ee9ng d\u1ee5ng m\u1edbi tr\u00ean m\u00e1y t\u00ednh c\u1ee7a m\u00ecnh.WordPress<\/code>Trang web n\u00e0y s\u1ebd tr\u1edf th\u00e0nh \u201cm\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m\u201d (sandbox) cho vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugins) c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

C\u00e0i \u0111\u1eb7t c\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i v\u00e0 chu\u1ea9n b\u1ecb c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft.<\/h3>\n\n\n\n

Tr\u00ean trang web c\u1ee5c b\u1ed9, b\u1ea1n n\u00ean c\u00e0i \u0111\u1eb7t phi\u00ean b\u1ea3n \u1ed5n \u0111\u1ecbnh m\u1edbi nh\u1ea5t.WordPress<\/code>\u0110\u00e2y l\u00e0 \u0111o\u1ea1n m\u00e3 c\u1ed1t l\u00f5i. \u0110\u1ed3ng th\u1eddi, \u0111\u1ec3 thu\u1eadn ti\u1ec7n cho vi\u1ec7c g\u1ee1 l\u1ed7i (debugging), b\u1ea1n c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 thao t\u00e1c tr\u00ean trang web c\u1ee7a m\u00ecnh.wp-config.php<\/code>trong t\u1ec7pWP_DEBUG<\/code>\u201cM\u00f4 h\u00ecnh.\u201ddefine('WP_DEBUG', true);<\/code>Vi\u1ec7c th\u00eam d\u00f2ng m\u00e3 n\u00e0y v\u00e0o t\u1ec7p s\u1ebd gi\u00fap th\u00f4ng b\u00e1o l\u1ed7i v\u00e0 c\u1ea3nh b\u00e1o \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u1ef1c ti\u1ebfp tr\u00ean trang web, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi vi\u1ec7c x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n c\u1ee7a c\u00e1c v\u1ea5n \u0111\u1ec1. V\u1ec1 ph\u1ea7n tr\u00ecnh so\u1ea1n th\u1ea3o m\u00e3,Visual Studio Code<\/code>\u3001PHPStorm<\/code>\u6216Sublime Text<\/code>T\u1ea5t c\u1ea3 \u0111\u1ec1u l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn xu\u1ea5t s\u1eafc; ch\u00fang th\u01b0\u1eddng s\u1edf h\u1eefu nh\u1eefng t\u00ednh n\u0103ng m\u1ea1nh m\u1ebd (ho\u1eb7c: ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb nh\u1eefng c\u00f4ng c\u1ee5 hi\u1ec7u qu\u1ea3).PHP<\/code>\u548cWordPress<\/code>Plugin cung c\u1ea5p g\u1ee3i \u00fd v\u1ec1 m\u00e3 ngu\u1ed3n (code suggestions).<\/p>\n

\u0110\u1ecdc th\u00eam T\u1eeb ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u \u0111\u1ebfn m\u1ee9c th\u00e0nh th\u1ee5c: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u1ec1 ph\u00e1t tri\u1ec3n plugin cho WordPress<\/a>\u3002<\/p>\n\n\n\n\n

T\u1ea1o ra plugin c\u01a1 b\u1ea3n \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n

Sau khi hi\u1ec3u r\u00f5 v\u1ec1 c\u1ea5u h\u00ecnh m\u00f4i tr\u01b0\u1eddng, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u t\u1ea1o m\u1ed9t plugin c\u01a1 b\u1ea3n nh\u1ea5t.WordPress<\/code>V\u1ec1 b\u1ea3n ch\u1ea5t, m\u1ed9t plugin ch\u00ednh l\u00e0 m\u1ed9t ho\u1eb7c nhi\u1ec1u th\u00e0nh ph\u1ea7n b\u1ed5 sung \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 m\u1edf r\u1ed9ng ch\u1ee9c n\u0103ng c\u1ee7a m\u1ed9t ph\u1ea7n m\u1ec1m ch\u00ednh.PHP<\/code>T\u1ec7p tin, \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u1ea1iwp-content\/plugins<\/code>N\u00f3 n\u1eb1m trong th\u01b0 m\u1ee5c, v\u00e0 th\u00f4ng tin \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i th\u00f4ng qua c\u00e1c ghi ch\u00fa \u0111\u1eb7c bi\u1ec7t \u1edf ph\u1ea7n \u0111\u1ea7u c\u1ee7a t\u1ec7p tin (header c\u1ee7a t\u1ec7p).WordPress<\/code>H\u1ec7 th\u1ed1ng t\u1ef1 gi\u1edbi thi\u1ec7u b\u1ea3n th\u00e2n.<\/p>\n\n\r\n

\r\n \r\n
\r\n \r\n UltaHost \u2013 Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 m\u00e1y ch\u1ee7 WordPress chuy\u00ean nghi\u1ec7p <\/strong>\r\n
B\u1ea3o \u0111\u1ea3m ho\u00e0n ti\u1ec1n trong 30 ng\u00e0y, b\u0103ng th\u00f4ng v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00f4ng gi\u1edbi h\u1ea1n, b\u1ea3o v\u1ec7 DDoS mi\u1ec5n ph\u00ed, mua 3 n\u0103m \u01b0u \u0111\u00e3i 50%<\/div>\r\n <\/div>\r\n\r\n
\r\n \r\n \"Logo\r\n \r\n <\/a>\r\n \r\n \r\n Truy c\u1eadp trang <\/a>\r\n <\/div>\r\n<\/div>\n\n\n\n\n\n\n

C\u1ea5u tr\u00fac t\u1ec7p ch\u00ednh c\u1ee7a plugin<\/h3>\n\n\n\n

T\u1ec7p ch\u00ednh c\u1ee7a m\u1ed9t plugin ch\u00ednh l\u00e0 ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a n\u00f3, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean theo t\u00ean c\u1ee7a plugin \u0111\u00f3. V\u00ed d\u1ee5:my-first-plugin.php<\/code>\u0110\u1ecbnh d\u1ea1ng c\u1ee7a t\u1ec7p tin n\u00e0y ph\u1ea3i bao g\u1ed3m c\u00e1c ghi ch\u00fa ti\u00eau chu\u1ea9n \u1edf ph\u1ea7n \u0111\u1ea7u (header) d\u00e0nh cho plugin. \u0110i\u1ec1u n\u00e0y l\u00e0 b\u1eaft bu\u1ed9c.WordPress<\/code>Nh\u1eadn di\u1ec7n c\u00e1c y\u1ebfu t\u1ed1 then ch\u1ed1t c\u1ee7a plugin.<\/p>\n\n\n\n

<?php\n\/**\n * Plugin Name:       \u6211\u7684\u7b2c\u4e00\u4e2a\u63d2\u4ef6\n * Plugin URI:        https:\/\/example.com\/my-first-plugin\n * Description:       \u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u6f14\u793a\u7684\u7b80\u5355WordPress\u63d2\u4ef6\u3002\n * Version:           1.0.0\n * Author:            \u4f60\u7684\u540d\u5b57\n * Author URI:        https:\/\/example.com\n * License:           GPL v2 or later\n * Text Domain:       my-first-plugin\n * Domain Path:       \/languages\n *\/<\/code><\/pre>\n\n\n\n
H\u00e3y \u0111\u1eb7t t\u1ec7p ch\u1ee9a \u0111o\u1ea1n m\u00e3 tr\u00ean v\u00e0o \u0111\u00fang v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.wp-content\/plugins\/my-first-plugin\/<\/code>Sau m\u1ee5c l\u1ee5c, h\u00e3y \u0111\u0103ng nh\u1eadp.WordPress<\/code>Tr\u00ean trang \u201cC\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng\u201d (Plugins) \u1edf ph\u00eda sau h\u1ec7 th\u1ed1ng, b\u1ea1n c\u00f3 th\u1ec3 xem v\u00e0 k\u00edch ho\u1ea1t ti\u1ec7n \u00edch n\u00e0y. Hi\u1ec7n t\u1ea1i, ti\u1ec7n \u00edch n\u00e0y v\u1eabn ch\u01b0a c\u00f3 b\u1ea5t k\u1ef3 ch\u1ee9c n\u0103ng n\u00e0o.<\/p>\n\n\n\n
Th\u1ef1c hi\u1ec7n m\u1ed9t ch\u1ee9c n\u0103ng \u0111\u01a1n gi\u1ea3n nh\u1ea5t.<\/h3>\n\n\n\n
H\u00e3y c\u00f9ng th\u00eam m\u1ed9t t\u00ednh n\u0103ng \u0111\u01a1n gi\u1ea3n cho plugin n\u00e0y: hi\u1ec3n th\u1ecb m\u1ed9t d\u00f2ng v\u0103n b\u1ea3n t\u00f9y ch\u1ec9nh \u1edf ph\u1ea7n ch\u00e2n trang (footer) c\u1ee7a trang web. \u0110i\u1ec1u n\u00e0y s\u1ebd y\u00eau c\u1ea7u s\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 ho\u1eb7c \u0111o\u1ea1n m\u00e3 nh\u1ea5t \u0111\u1ecbnh \u0111\u1ec3 th\u1ef1c hi\u1ec7n.WordPress<\/code>Mekanism \u201cHook\u201d c\u1ee7a\u2026 Ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng n\u00f3.wp_footer<\/code>\u201cAction Hook\u201d n\u00e0y\u2026<\/p>\n\n\n\n
\/\/ \u4e0a\u8ff0\u63d2\u4ef6\u5934\u90e8\u6ce8\u91ca\u4e4b\u540e\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\nfunction my_first_plugin_add_footer_text() {\n    echo '<p style="text-align: center; color: #666;">C\u1ea3m \u01a1n b\u1ea1n \u0111ã s\u1eed d\u1ee5ng trang web này! N\u1ed9i dung này \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi “My First Plugin”.<\/p>';\n}\nadd_action( 'wp_footer', 'my_first_plugin_add_footer_text' );<\/code><\/pre>\n\n\n\n
Sau khi l\u01b0u t\u1ec7p, h\u00e3y l\u00e0m m\u1edbi trang hi\u1ec3n th\u1ecb tr\u00ean trang web (th\u01b0\u1eddng l\u00e0 ph\u1ea7n ch\u00e2n trang c\u1ee7a giao di\u1ec7n tema), v\u00e0 b\u1ea1n s\u1ebd th\u1ea5y v\u0103n b\u1ea3n v\u1eeba \u0111\u01b0\u1ee3c th\u00eam v\u00e0o.my_first_plugin_add_footer_text<\/code>\u0110\u00e3 x\u00e1c \u0111\u1ecbnh r\u00f5 c\u00e1c thao t\u00e1c c\u1ea7n th\u1ef1c hi\u1ec7n, nh\u01b0ng\u2026add_action<\/code>\u201cMount\u201d this function to\u2026wp_footer<\/code>Tr\u00ean c\u00e1i m\u00f3c n\u00e0y, c\u00f3 th\u00f4ng tin \u0111\u01b0\u1ee3c ghi ch\u00e9p l\u1ea1i.WordPress<\/code>Th\u1ef1c hi\u1ec7n n\u00f3 khi hi\u1ec3n th\u1ecb ph\u1ea7n ch\u00e2n trang (footer).<\/p>\n
\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn nh\u1eadp m\u00f4n ph\u00e1t tri\u1ec3n plugin cho WordPress: T\u1eeb kh\u00f4ng bi\u1ebft g\u00ec \u0111\u1ebfn x\u00e2y d\u1ef1ng c\u00e1c m\u00f4-\u0111un ch\u1ee9c n\u0103ng chuy\u00ean nghi\u1ec7p<\/a>\u3002<\/p>\n\n\n\n\n
\u0110i s\u00e2u v\u00e0o c\u1ed1t l\u00f5i: Hook v\u00e0 B\u1ed9 l\u1ecdc<\/h2>\n\n\n\n
WordPress<\/code>Tri\u1ebft l\u00fd c\u1ed1t l\u00f5i c\u1ee7a vi\u1ec7c ph\u00e1t tri\u1ec3n plugin l\u00e0 \u201cHook\u201d (C\u00e1c c\u00f4ng c\u1ee5 k\u1ebft n\u1ed1i). N\u00f3 mang l\u1ea1i kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00f4 song, cho ph\u00e9p b\u1ea1n ch\u00e8n v\u00e0 s\u1eeda \u0111\u1ed5i \u0111o\u1ea1n m\u00e3 c\u1ee7a m\u00ecnh v\u00e0o nh\u1eefng th\u1eddi \u0111i\u1ec3m c\u1ee5 th\u1ec3 trong qu\u00e1 tr\u00ecnh th\u1ef1c thi ch\u01b0\u01a1ng tr\u00ecnh.WordPress<\/code>Ho\u1eb7c h\u00e0nh vi c\u1ee7a c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugin) kh\u00e1c, m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i thay \u0111\u1ed5i c\u00e1c t\u1ec7p c\u1ed1t l\u00f5i (core files). C\u00e1c hook ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chia th\u00e0nh hai lo\u1ea1i: Action v\u00e0 Filter.<\/p>\n\n\n\n
Hi\u1ec3u c\u00e1c hook h\u00e0nh \u0111\u1ed9ng<\/h3>\n\n\n\n
C\u00e1c hook h\u00e0nh \u0111\u1ed9ng (action hooks) cho ph\u00e9p b\u1ea1n th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 c\u1ee5 th\u1ec3 khi m\u1ed9t s\u1ef1 ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh x\u1ea3y ra.WordPress<\/code>C\u00e1c n\u00fat c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c thi s\u1ebd ch\u1ea1y m\u00e3 t\u1ef1 \u0111\u1ecbnh. Ch\u00fang kh\u00f4ng y\u00eau c\u1ea7u ph\u1ea3i tr\u1ea3 v\u1ec1 gi\u00e1 tr\u1ecb n\u00e0o c\u1ea3; m\u1ee5c \u0111\u00edch duy nh\u1ea5t l\u00e0 \u201cth\u1ef1c hi\u1ec7n m\u1ed9t h\u00e0nh \u0111\u1ed9ng\u201d nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5,init<\/code>C\u00e2y m\u00f3c \u0111ang \u1edf\u2026WordPress<\/code>\u0110\u01b0\u1ee3c k\u00edch ho\u1ea1t khi h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c kh\u1edfi t\u1ea1o, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u0103ng k\u00fd c\u00e1c lo\u1ea1i b\u00e0i vi\u1ebft t\u00f9y ch\u1ec9nh ho\u1eb7c h\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i (taxonomy).admin_menu<\/code>C\u00e1c \u201chook\u201d (m\u00f3c) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u00eam trang menu v\u00e0o giao di\u1ec7n qu\u1ea3n tr\u1ecb; nh\u1eefng th\u1ee9 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u01b0\u1edbc \u0111\u00f3\u2026wp_footer<\/code>\u0110i\u1ec1u n\u00e0y x\u1ea3y ra khi trang ch\u00e2n trang (footer) \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb.<\/p>\n\n\n\n
\u0110\u1ec3 th\u00eam m\u1ed9t h\u00e0nh \u0111\u1ed9ng (action), b\u1ea1n c\u1ea7n s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 ho\u1eb7c quy tr\u00ecnh t\u01b0\u01a1ng \u1ee9ng.add_action()<\/code>H\u00e0m (Function): C\u00fa ph\u00e1p c\u01a1 b\u1ea3n c\u1ee7a n\u00f3 l\u00e0:add_action( 'hook_name', 'your_function_name', priority, accepted_args );<\/code>\u201c\u01afu ti\u00ean\u201d (priority) l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean, v\u1edbi gi\u00e1 tr\u1ecb m\u1eb7c \u0111\u1ecbnh l\u00e0 10; s\u1ed1 c\u00e0ng nh\u1ecf th\u00ec vi\u1ec7c th\u1ef1c hi\u1ec7n s\u1ebd di\u1ec5n ra c\u00e0ng s\u1edbm. S\u1ed1 l\u01b0\u1ee3ng tham s\u1ed1 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn (accepted_args) c\u00f3 gi\u00e1 tr\u1ecb m\u1eb7c \u0111\u1ecbnh l\u00e0 1.<\/p>\n\n\r\n
\r\n     \r\n  
\r\n    \r\n      Hosting.com - l\u01b0u tr\u1eef chia s\u1ebb    <\/strong>\r\n    
Hi\u1ec7u n\u0103ng cao, \u0111\u01b0\u1ee3c trang b\u1ecb CPU AMD EPYC, l\u01b0u tr\u1eef SSD NVMe v\u00e0 LiteSpeed, h\u1ed7 tr\u1ee3 chuy\u00ean gia n\u1ed9i b\u1ed9 24 gi\u1edd\/ng\u00e0y, c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt ti\u00ean ti\u1ebfn bao g\u1ed3m SSL, ch\u1ed1ng brute force, ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i v\u00e0 b\u1ea3o v\u1ec7 DDoS, ti\u1ebft ki\u1ec7m t\u1edbi 73%.<\/div>\r\n  <\/div>\r\n\r\n  
\r\n          \r\n                  \"Logo\r\n          \r\n              <\/a>\r\n    \r\n    \r\n       Truy c\u1eadp trang    <\/a>\r\n  <\/div>\r\n<\/div>\n\n\n\n\n\n\n
Hi\u1ec3u v\u1ec1 c\u00e1c hook (kh\u1edbp n\u1ed1i) trong b\u1ed9 l\u1ecdc (filter hooks)<\/h3>\n\n\n\n
C\u00e1c hook c\u1ee7a b\u1ed9 l\u1ecdc (filter hooks) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thay \u0111\u1ed5i d\u1eef li\u1ec7u. Ch\u00fang y\u00eau c\u1ea7u m\u1ed9t gi\u00e1 tr\u1ecb tr\u1ea3 v\u1ec1, \u0111\u00f3 ch\u00ednh l\u00e0 gi\u00e1 tr\u1ecb sau khi \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i. V\u00ed d\u1ee5:the_title<\/code>B\u1ed9 l\u1ecdc cho ph\u00e9p b\u1ea1n thay \u0111\u1ed5i ti\u00eau \u0111\u1ec1 b\u00e0i vi\u1ebft tr\u01b0\u1edbc khi n\u00f3 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb.wp_mail_from<\/code>C\u00e1c b\u1ed9 l\u1ecdc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh (c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i).WordPress<\/code>\u0110\u1ecba ch\u1ec9 ng\u01b0\u1eddi g\u1eedi khi nh\u1eafn email.<\/p>\n\n\n\n
Th\u00eam m\u1ed9t b\u1ed9 l\u1ecdc c\u1ea7n s\u1eed d\u1ee5ngadd_filter()<\/code>H\u00e0m (Function): C\u00fa ph\u00e1p c\u1ee7a n\u00f3 l\u00e0\u2026add_action()<\/code>T\u01b0\u01a1ng t\u1ef1. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 c\u00e1ch s\u1eeda \u0111\u1ed5i ti\u00eau \u0111\u1ec1 c\u1ee7a m\u1ed9t b\u00e0i vi\u1ebft:<\/p>\n\n\n\n
function my_first_plugin_modify_title( $title ) {\n    if ( is_single() ) { \/\/ \u4ec5\u5728\u5355\u72ec\u7684\u6587\u7ae0\u9875\u9762\n        return '\u3010\u63a8\u8350\u3011' . $title;\n    }\n    return $title; \/\/ \u5fc5\u987b\u8fd4\u56de\u4fee\u6539\u540e\u7684\u6216\u539f\u59cb\u7684\u6807\u9898\n}\nadd_filter( 'the_title', 'my_first_plugin_modify_title' );<\/code><\/pre>\n\n\n\n
X\u00e2y d\u1ef1ng c\u00e1c t\u00ednh n\u0103ng ph\u1ee9c t\u1ea1p: C\u00e1c l\u1edbp plugin v\u00e0 b\u1ea3o m\u1eadt<\/h2>\n\n\n\n
Khi c\u00e1c t\u00ednh n\u0103ng c\u1ee7a plugin ng\u00e0y c\u00e0ng t\u0103ng l\u00ean, vi\u1ec7c ch\u1ee9a t\u1ea5t c\u1ea3 c\u00e1c h\u00e0m trong t\u1eadp tin ch\u00ednh s\u1ebd tr\u1edf n\u00ean kh\u00f3 b\u1ea3o tr\u00ec. L\u00fac n\u00e0y, vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac l\u1edbp theo h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (Object-Oriented Programming \u2013 OOP) l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n. N\u00f3 gi\u00fap t\u1ed5 ch\u1ee9c m\u00e3 ngu\u1ed3n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n, b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u, v\u00e0 gi\u1ea3m thi\u1ec3u t\u00ecnh tr\u1ea1ng xung \u0111\u1ed9t t\u00ean g\u1ecdi (namespace conflicts). \u0110\u1ed3ng th\u1eddi, v\u1ea5n \u0111\u1ec1 b\u1ea3o m\u1eadt c\u1ea7n \u0111\u01b0\u1ee3c quan t\u00e2m ngay t\u1eeb \u0111\u1ea7u qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n.<\/p>\n
\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn ho\u00e0n ch\u1ec9nh v\u1ec1 ph\u00e1t tri\u1ec3n t\u00f9y ch\u1ec9nh WooCommerce: T\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn th\u1ef1c h\u00e0nh<\/a>\u3002<\/p>\n\n\n\n\n
S\u1eed d\u1ee5ng c\u00e1c l\u1edbp \u0111\u1ec3 \u0111\u00f3ng g\u00f3i ch\u1ee9c n\u0103ng c\u1ee7a plugin<\/h3>\n\n\n\n
Ch\u00fang ta c\u00f3 th\u1ec3 t\u00e1i c\u1ea5u tr\u00fac plugin th\u00e0nh m\u1ed9t l\u1edbp (class). H\u00e0m kh\u1edfi t\u1ea1o (constructor) c\u1ee7a l\u1edbp l\u00e0 n\u01a1i l\u00fd t\u01b0\u1edfng \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c kh\u1edfi t\u1ea1o c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a plugin.<\/p>\n\n\n\n
&lt;?php\n\/**\n * Plugin Name:       \u6211\u7684\u9ad8\u7ea7\u63d2\u4ef6\n * ... \/\/ \u5176\u4ed6\u5934\u90e8\u4fe1\u606f\n *\/\n\nif ( ! class_exists( &#039;My_Advanced_Plugin&#039; ) ) {\n\nclass My_Advanced_Plugin {\n\npublic function __construct() {\n            \/\/ \u5728\u6784\u9020\u51fd\u6570\u4e2d\u6302\u8f7d\u6240\u6709\u94a9\u5b50\n            add_action( &#039;wp_footer&#039;, array( $this, &#039;add_footer_text&#039; ) );\n            add_filter( &#039;the_title&#039;, array( $this, &#039;modify_title&#039; ) );\n            add_action( &#039;admin_menu&#039;, array( $this, &#039;create_admin_page&#039; ) );\n        }\n\npublic function add_footer_text() {\n            echo &#039;<p>V\u0103n b\u1ea3n \u1edf chân trang (Footer Text)<\/p>';\n        }\n\npublic function modify_title( $title ) {\n            \/\/ \u4fee\u6539\u6807\u9898\u7684\u903b\u8f91\n            return $title;\n        }\n\npublic function create_admin_page() {\n            \/\/ \u521b\u5efa\u540e\u53f0\u83dc\u5355\u9875\u9762\u7684\u903b\u8f91\n        }\n    }\n\n\/\/ \u521d\u59cb\u5316\u63d2\u4ef6\u7c7b\n    new My_Advanced_Plugin();\n}<\/code><\/pre>\n\n\n\n
D\u01b0\u1edbi d\u1ea1ng m\u1ed9t m\u1ea3ng.array( $this, 'method_name' )<\/code>Truy\u1ec1n ph\u01b0\u01a1ng th\u1ee9c l\u1edbp d\u01b0\u1edbi d\u1ea1ng h\u00e0m g\u1ecdi l\u1ea1i (callback function) cho hook. Ki\u1ec3m tra t\u00ean l\u1edbp.! class_exists()<\/code>N\u00f3 c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c \u0111\u1ecbnh ngh\u0129a l\u1eb7p l\u1ea1i c\u00e1c l\u1edbp (classes).<\/p>\n\n\r\n
\r\n     \r\n  
\r\n    \r\n      M\u00e1y ch\u1ee7 chia s\u1ebb c\u1ee7a InterServer    <\/strong>\r\n    
L\u01b0u tr\u1eef chia s\u1ebb v\u1edbi m\u1ee9c ph\u00ed $2,50 USD m\u1ed7i th\u00e1ng, gi\u1ea3m gi\u00e1 $0,1 USD trong th\u00e1ng \u0111\u1ea7u ti\u00ean, m\u00e3 gi\u1ea3m gi\u00e1 tryinterserver, v\u1edbi 461 \u1ee9ng d\u1ee5ng \u0111\u00e1m m\u00e2y v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ec9 b\u1eb1ng m\u1ed9t c\u00fa nh\u1ea5p chu\u1ed9t.<\/div>\r\n  <\/div>\r\n\r\n  
\r\n          \r\n                  \"Logo\r\n          \r\n              <\/a>\r\n    \r\n    \r\n       Truy c\u1eadp trang    <\/a>\r\n  <\/div>\r\n<\/div>\n\n\n\n\n\n\n
\u0110\u1ea3m b\u1ea3o t\u00ednh an to\u00e0n c\u1ee7a c\u00e1c plugin<\/h3>\n\n\n\n
An ninh l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 b\u1ecf qua trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u00e1c plugin chuy\u00ean nghi\u1ec7p. Nguy\u00ean t\u1eafc h\u00e0ng \u0111\u1ea7u l\u00e0: \u0110\u1eebng bao gi\u1edd tin t\u01b0\u1edfng v\u00e0o d\u1eef li\u1ec7u do ng\u01b0\u1eddi d\u00f9ng nh\u1eadp v\u00e0o. T\u1ea5t c\u1ea3 c\u00e1c d\u1eef li\u1ec7u \u0111\u1ebfn t\u1eeb ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec1u c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn v\u00e0 ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng.$_GET<\/code>\u3001$_POST<\/code>\u3001$_REQUEST<\/code>D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb c\u01a1 s\u1edf d\u1eef li\u1ec7u, tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh, s\u1eed d\u1ee5ng cho c\u00e1c truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u ho\u1eb7c thao t\u00e1c v\u1edbi t\u1ec7p tin, \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c, l\u00e0m s\u1ea1ch ho\u1eb7c x\u1eed l\u00fd (nh\u01b0 vi\u1ec7c \u0111\u1eb7t d\u1ea5u tho\u00e1t).<\/p>\n\n\n\n
\u0110\u1ed1i v\u1edbi n\u1ed9i dung \u0111\u01b0\u1ee3c xu\u1ea5t ra d\u01b0\u1edbi d\u1ea1ng HTML, h\u00e3y s\u1eed d\u1ee5ng\u2026esc_html()<\/code>\u3001esc_attr()<\/code>\u6216wp_kses_post()<\/code>Th\u1ef1c hi\u1ec7n vi\u1ec7c tho\u00e1t k\u00fd t\u1ef1 (escape).
\n\u0110\u1ed1i v\u1edbi c\u00e1c bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u, ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 \u0111\u00fang quy \u0111\u1ecbnh.$wpdb->prepare()<\/code>Khi th\u1ef1c hi\u1ec7n truy v\u1ea5n c\u00f3 tham s\u1ed1, tuy\u1ec7t \u0111\u1ed1i tr\u00e1nh vi\u1ec7c n\u1ed1i c\u00e1c chu\u1ed7i SQL tr\u1ef1c ti\u1ebfp v\u1edbi nhau.
\nKhi x\u1eed l\u00fd c\u00e1c quy\u1ec1n (permissions), h\u00e3y nh\u1edb s\u1eed d\u1ee5ng c\u00e1c quy \u0111\u1ecbnh v\u00e0 c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf m\u1ed9t c\u00e1ch chuy\u00ean nghi\u1ec7p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 trong qu\u00e1 tr\u00ecnh qu\u1ea3n l\u00fd.current_user_can()<\/code>\u548ccheck_admin_referer()<\/code>C\u00e1c h\u00e0m nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c n\u0103ng l\u1ef1c c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a y\u00eau c\u1ea7u (request).
\nS\u1eed d\u1ee5ng cho v\u0103n b\u1ea3n kh\u00f4ng ph\u1ea3i giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng__()<\/code>\u3001_e()<\/code>C\u00e1c h\u00e0m nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c \u201cb\u1ecdc\u201d (wrapped) l\u1ea1i \u0111\u1ec3 chu\u1ea9n b\u1ecb t\u1ed1t h\u01a1n cho vi\u1ec7c h\u1ed7 tr\u1ee3 qu\u1ed1c t\u1ebf h\u00f3a (internationalization).<\/p>\n\n\n\n
T\u00f3m l\u1ea1i<\/h2>\n\n\n\n
WordPress<\/code>Vi\u1ec7c ph\u00e1t tri\u1ec3n plugin l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng, x\u00e2y d\u1ef1ng c\u1ea5u tr\u00fac c\u01a1 b\u1ea3n, ti\u1ebfp t\u1ee5c v\u1edbi vi\u1ec7c hi\u1ec3u s\u00e2u v\u1ec1 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c hook (nh\u1eefng th\u00e0nh ph\u1ea7n li\u00ean k\u1ebft c\u00e1c ph\u1ea7n kh\u00e1c nhau trong \u1ee9ng d\u1ee5ng), v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 x\u00e2y d\u1ef1ng nh\u1eefng \u1ee9ng d\u1ee5ng m\u1ea1nh m\u1ebd b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt t\u1ed1t nh\u1ea5t. B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u1ea5u tr\u00facWordPress<\/code>C\u00e1c t\u00ednh n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a c\u00f4ng c\u1ee5 n\u00e0y bao g\u1ed3m: vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac m\u00e3 d\u1ef1a tr\u00ean c\u00e1c l\u1edbp (classes) gi\u00fap n\u00e2ng cao \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec; c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt nghi\u00eam ng\u1eb7t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t trong vi\u1ec7c b\u1ea3o v\u1ec7 trang web v\u00e0 d\u1eef li\u1ec7u. B\u1eb1ng c\u00e1ch n\u1eafm v\u1eefng nh\u1eefng quy tr\u00ecnh v\u00e0 kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng t\u1eeb vi\u1ec7c th\u1ef1c hi\u1ec7n nh\u1eefng \u00fd t\u01b0\u1edfng \u0111\u01a1n gi\u1ea3n \u0111<\/p>\n\n\n\n
FAQ \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n
\u0110\u1ec3 ph\u00e1t tri\u1ec3n plugin cho ###, b\u1ea1n c\u1ea7n n\u1eafm v\u1eefng PHP \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 n\u00e0o?
\n\u0110\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c plugin c\u01a1 b\u1ea3n, b\u1ea1n c\u1ea7n n\u1eafm v\u1eefng ng\u1eef ph\u00e1p c\u01a1 b\u1ea3n c\u1ee7a PHP nh\u01b0 bi\u1ebfn, h\u00e0m, \u0111i\u1ec1u ki\u1ec7n, v\u00f2ng l\u1eb7p v\u00e0 m\u1ea3ng. N\u1ebfu mu\u1ed1n ph\u00e1t tri\u1ec3n nh\u1eefng plugin ph\u1ee9c t\u1ea1p h\u01a1n, b\u1ea1n s\u1ebd c\u1ea7n hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, kh\u00f4ng gian t\u00ean (namespace),\u2026Composer<\/code>Qu\u1ea3n l\u00fd ph\u1ee5 thu\u1ed9c (Dependency Management) v\u00e0\u2026WordPress<\/code>\u0111\u1eb7c tr\u01b0ngWP_Query<\/code>\u3001WP_Error<\/code>C\u00e1c l\u1edbp t\u01b0\u01a1ng t\u1ef1 v\u00e0 h\u00e0m. Quen thu\u1ed9c v\u1edbi ch\u00fang.WordPress<\/code>Vi\u1ec7c hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac b\u1ea3ng c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u0169ng l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 ti\u1ebfn b\u1ed9 h\u01a1n trong c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n
C\u00e1c plugin (ti\u1ec7n \u00edch m\u1edf r\u1ed9ng) ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 trao \u0111\u1ed5i d\u1eef li\u1ec7u v\u1edbi giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng (theme) c\u1ee7a trang web?<\/h3>\n\n\n\n
Plugin v\u00e0 ch\u1ee7 \u0111\u1ec1 t\u01b0\u01a1ng t\u00e1c ch\u1ee7 y\u1ebfu th\u00f4ng quaWordPress<\/code>API cho c\u00e1c t\u00f9y ch\u1ecdn (Options API)get_option<\/code>\uff0c update_option<\/code>), v\u00e0 metadata c\u1ee7a b\u00e0i vi\u1ebft (article metadata).get_post_meta<\/code>\uff0c update_post_meta<\/code>C\u00e1c plugin c\u0169ng h\u1ed7 tr\u1ee3 c\u00e1c hook t\u00f9y ch\u1ec9nh. Ch\u00fang c\u00f3 th\u1ec3 l\u01b0u d\u1eef li\u1ec7u v\u00e0o nh\u1eefng v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh, sau \u0111\u00f3 c\u00e1c theme c\u00f3 th\u1ec3 \u0111\u1ecdc v\u00e0 hi\u1ec3n th\u1ecb d\u1eef li\u1ec7u \u0111\u00f3 th\u00f4ng qua c\u00e1c h\u00e0m t\u01b0\u01a1ng \u1ee9ng. Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t l\u00e0 plugin cung c\u1ea5p nh\u1eefng h\u00e0m ho\u1eb7c hook r\u00f5 r\u00e0ng \u0111\u1ec3 c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n theme c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng, thay v\u00ec tr\u1ef1c ti\u1ebfp thao t\u00e1c v\u1edbi c\u00e1c t\u1ec7p template c\u1ee7a theme.<\/p>\n\n\n\n
L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 g\u1eedi c\u00e1c plugin \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n l\u00ean danh m\u1ee5c ch\u00ednh th\u1ee9c?<\/h3>\n\n\n\n
Tr\u01b0\u1edbc h\u1ebft, b\u1ea1n c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng plugin c\u1ee7a m\u00ecnh ho\u00e0n to\u00e0n tu\u00e2n th\u1ee7 c\u00e1c h\u01b0\u1edbng d\u1eabn trong \u201cC\u1ea9m nang Ph\u00e1t tri\u1ec3n Plugin\u201d ch\u00ednh th\u1ee9c v\u00e0 c\u00e1c \u201cTh\u1ef1c h\u00e0nh L\u1eadp tr\u00ecnh T\u1ed1t nh\u1ea5t\u201d \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh. Sau \u0111\u00f3,WordPress.org<\/code>H\u00e3y n\u1ed9p \u0111\u01a1n \u0111\u1ec3 xin m\u1ed9t kho l\u01b0u tr\u1eef SVN, v\u00e0 g\u1eedi m\u00e3 ngu\u1ed3n c\u1ee7a plugin c\u1ee7a b\u1ea1n (\u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n c\u1ea7n thi\u1ebft).readme.txt<\/code>B\u1ea1n c\u1ea7n n\u1ed9p t\u1ec7p tin (file) \u0111\u00f3 l\u00ean. \u0110\u1ed9i ng\u0169 ch\u00ednh th\u1ee9c s\u1ebd ti\u1ebfn h\u00e0nh ki\u1ec3m tra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00e3 ngu\u1ed3n an to\u00e0n v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh; sau \u0111\u00f3, plugin s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o danh m\u1ee5c ch\u00ednh th\u1ee9c \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng t\u1ea3i v\u1ec1. V\u00e0o n\u0103m 2026, quy tr\u00ecnh ki\u1ec3m tra n\u00e0y c\u00f3 th\u1ec3 s\u1ebd tr\u1edf n\u00ean t\u1ef1 \u0111\u1ed9ng h\u01a1n, nh\u01b0ng c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 b\u1ea3o m\u1eadt m\u00e3 ngu\u1ed3n s\u1ebd c\u00e0ng \u0111\u01b0\u1ee3c n\u00e2ng cao h\u01a1n n\u1eefa.<\/p>\n\n\n\n
L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u1eed l\u00fd vi\u1ec7c c\u1eadp nh\u1eadt v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a c\u00e1c plugin?<\/h3>\n\n\n\n
\u0110\u1ec3 tri\u1ec3n khai c\u1eadp nh\u1eadt t\u1ef1 \u0111\u1ed9ng cho plugin, b\u1ea1n c\u1ea7n l\u01b0u tr\u1eef plugin tr\u00eanWordPress.org<\/code>B\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 m\u00ecnh tri\u1ec3n khai c\u00e1c ch\u1ee9c n\u0103ng c\u1eadp nh\u1eadt API ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 c\u00f3 s\u1eb5n. Vi\u1ec7c duy tr\u00ec t\u00ednh t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c (backward compatibility) l\u00e0 r\u1ea5t quan tr\u1ecdng. Khi c\u1eadp nh\u1eadt c\u00e1c h\u00e0m, l\u1edbp ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n li\u00ean quan \u0111\u1ebfn qu\u00e1 tr\u00ecnh x\u1eed l\u00fd d\u1eef li\u1ec7u (hooks), b\u1ea1n kh\u00f4ng n\u00ean ngay l\u1eadp t\u1ee9c x\u00f3a m\u00e3 ngu\u1ed3n c\u1ee7a phi\u00ean b\u1ea3n c\u0169, m\u00e0_deprecated_function()<\/code>C\u00e1c h\u00e0m li\u00ean quan \u0111\u1ebfn vi\u1ec7c ch\u1edd \u0111\u1ee3i (nh\u01b0 c\u00e1c h\u00e0m ki\u1ec3u \u201cwait\u201d) s\u1ebd \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf sau v\u00e0i phi\u00ean b\u1ea3n ch\u00ednh c\u1ee7a ph\u1ea7n m\u1ec1m. M\u1ecdi thay \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac c\u01a1 s\u1edf d\u1eef li\u1ec7u (ch\u1eb3ng h\u1ea1n nh\u01b0 th\u00eam b\u1ea3ng ho\u1eb7c tr\u01b0\u1eddng m\u1edbi) \u0111\u1ec1u y\u00eau c\u1ea7u ph\u1ea3i th\u1ef1c hi\u1ec7n quy tr\u00ecnh c\u00e0i \u0111\u1eb7t\/n\u00e2ng c\u1ea5p b\u1eb1ng c\u00e1ch ki\u1ec3m tra s\u1ed1 phi\u00ean b\u1ea3n<\/p>","protected":false},"excerpt":{"rendered":"
B\u00e0i vi\u1ebft n\u00e0y l\u00e0 m\u1ed9t h\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh v\u1ec1 vi\u1ec7c ph\u00e1t tri\u1ec3n plugin cho WordPress. \u0110\u1ea7u ti\u00ean, n\u00f3 gi\u1edbi thi\u1ec7u c\u00e1ch thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n c\u1ee5c b\u1ed9 v\u00e0 c\u1ea5u h\u00ecnh c\u00e1c c\u00f4ng c\u1ee5 g\u1ee1 l\u1ed7i, sau \u0111\u00f3 h\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc c\u00e1ch t\u1ea1o c\u1ea5u tr\u00fac t\u1ec7p tin cho plugin c\u01a1 b\u1ea3n \u0111\u1ea7u ti\u00ean. Cu\u1ed1i c\u00f9ng, b\u00e0i vi\u1ebft tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1ch th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng \u0111\u01a1n gi\u1ea3n th\u00f4ng qua c\u00e1c hook (kh\u1edbp n\u1ed1i l\u1ec7nh), \u0111\u1ed3ng th\u1eddi gi\u1ea3i th\u00edch c\u01a1 ch\u1ebf c\u1ed1t l\u00f5i c\u1ee7a vi\u1ec7c ph\u00e1t tri\u1ec3n plugin WordPress \u2013 \u0111\u00f3 l\u00e0 c\u00e1c hook v\u00e0 filter (b\u1ed9 l\u1ecdc d\u1eef li\u1ec7u).<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[118,787,2352,1927,2025],"knowledge_category":[280],"class_list":["post-12378121","knowledge_post","type-knowledge_post","status-publish","hentry","tag-wordpress","tag-complete-guide","tag-development-environment","tag-plugin-development","tag-programming-tutorials","knowledge_category-wordpress"],"acf":{"site_seo_keywords":"WordPress\u63d2\u4ef6\u5f00\u53d1,\u672c\u5730\u73af\u5883\u642d\u5efa,\u94a9\u5b50(Hooks),\u52a8\u4f5c\u94a9\u5b50,\u8fc7\u6ee4\u5668,\u63d2\u4ef6\u521b\u5efa,WordPress\u8c03\u8bd5,\u63d2\u4ef6\u5f00\u53d1\u6307\u5357"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12378121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts"}],"about":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/types\/knowledge_post"}],"author":[{"embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"version-history":[{"count":1,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12378121\/revisions"}],"predecessor-version":[{"id":12404203,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12378121\/revisions\/12404203"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12378121"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12378121"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12378121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}